He felt such a question was hardly a proper subject for a GAC recommenda-. tion. Dr, Buckley shared this view. Dr. Rabi expressed grave doubts that the Committee should make a recommendation on the subject without far more study, especially in view of the imminence of Castle. Dr. von Neumann agreed that it would be better to withhold a recommendation until after Castle, The Committee agreed that a discussion of larger thermonuclear Agenda, weapons should be en item on the agenda for the next mecting. Meeting B, item 1) Next (Appendix The Committee did not have an opportunity at this meeting to study Small the paper on small weapons (VGHuston-to-IIRabi memorandum of October 2nd Weapons with five attachments) . With regard to this subject » Dr. Wigner urged that more attention should be given to defense measures, and that the use of small atomic bombs as antiaircraft weapons should be thoroughly considered, This feeling was shared by several members of the Committee. The fact that Los Alamos and Livermore are pursuing the small weapcns question was viewed with favor. oo It was brought up again that great advantages > particularly in szall Improvements in Chemical uk weapons but actually in all size ranges, would accrue ‘from improvements in chemical high explosives. ao8 - indicate that they have made significant advances with HE, Dr. von Neumann again referred to expert opinion (Kistiakowsky) that 30-40% improvement in HE performance might be achieved, The usual severe requiry ments on stability and surveillance behavior might be relaxed somewhat Denartment cf Energy Histcrien’s Cifloe ’ ARCHIVES . ¥9 _

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